To find the mean time spent shopping for each group, we need to add up all the times and then divide by the number of observations.
For Group A:
(18 + 20 + 46 + 34 + 58 + 31 + 41) / 7 = 248 / 7 = 35.4 minutes
For Group B:
(15 + 21 + 32 + 42 + 29 + 57 + 39) / 7 = 235 / 7 = 33.6 minutes
The mean time Group A spent shopping is 35.4 minutes.
The mean time Group B spent shopping is 33.6 minutes.
To find the difference in mean times, we subtract the mean time for Group B from the mean time for Group A:
35.4 - 33.6 = 1.8 minutes
Therefore, the mean times Group A and Group B spent shopping differ by 1.8 minutes.
help me 😅Use the table to answer the question.
Group A 18 20 46 34 58 31 41
Group B 15 21 32 42 29 57 39The table shows the times, in minutes, spent shopping by two different groups. First find the mean times each group spent shopping. Then determine the difference in the mean times. Round your answers to one decimal place.(2 points)
The mean time Group A spent shopping is
minutes.
The mean time Group B spent shopping is
minutes.
The mean times Group A and Group B spent shopping differ by
minutes.
1 answer